kern/58309: BUS_DMA_PREFETCHABLE is undocumented

[campbell+netbsd%mumble.net@localhost]

>Number:         58309
>Category:       kern
>Synopsis:       BUS_DMA_PREFETCHABLE is undocumented
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 04 21:35:00 +0000 2024
>Originator:     Taylor R Campbell
>Release:        current, 10, 9, ...
>Organization:
The BusDMA Prefetchation
>Environment:
>Description:
BUS_DMA_PREFETCHABLE is undocumented.
>How-To-Repeat:
man bus_dma
>Fix:
Yes, please!